Five reasons why your data use might go up with iOS/iPhone 4

Arstechnica: AT&T recently announced that it was changing up its data plans for all smartphones—including the iPhone. Instead of a $30 unlimited 3G plan, there's now a 2GB monthly cap for $25 per month, as well as a $15 tier that gets you 200MB of data. Though this upset some heavy data users, we here at Ars argued that most people should be able to save at least a little bit of cash each month, as 2GB can be a difficult to hit for many of us.